GRAVITY LESSONS Four of our sport’s top practitioners take an unfl inching look at our collective impact on the vertical spaces — and what we need to do now to protect the temple. By Conrad Anker, Sonnie Trotter, John Sherman, and Steve House • Illustration by Sean McCabe

THE OTHER THAILAND We all know Tonsai, Thailand’s killer but crowded beachside cragging. But move 450 miles north to Crazy Horse Buttress, outside Chiang Mai, and you’ll fi nd a quiet, singular crag that’s redefi ning the eco-tourism model. By Marisa Aragón Ware Photos by Josh and Dan Morris

THUNDERSTRUCK Thunder Bay, Ontario, is a land of still lakes, endless forests, and bullet volcanic crags, with hundreds of slammer cracks and cutting-edge FFAs awaiting those intrepid enough to explore its sylvan hills. By Brandon Pullan Photos by Mike Landkroon